Allen-Bradley 1747-L532 SLC 500 CPU Processor Module

The Allen-Bradley 1747-L532 is a SLC 5/03 CPU module for the SLC 500 controller family, serving as the central processing unit that executes ladder logic and coordinates I/O in small‑ to mid‑sized automation systems. It provides 16K of memory for program and data storage and includes built‑in serial communications (DH-485 and RS-232) for programming, remote devices, and operator interfaces. The processor supports a program scan time of about 1 ms and an I/O scan time of roughly 0.225 ms, delivering responsive control for typical discrete or mixed I/O applications. Power is drawn from the backplane at 5 V DC with a nominal current around 500 mA, and the module operates in ambient temperatures from 0 to 60 C. For data retention and offline storage, the 1747-L532 supports flash/CompactFlash backup memory, enabling nonvolatile storage of critical data when power is removed. This CPU is designed specifically for the SLC 500 ecosystem, aligning with the 1747‑L5xx processor family and compatible with the DH-485/RS-232 communication schemes common to mid‑range Allen‑Bradley automation networks.